Pith Number

pith:KPCHPMAU

pith:2015:KPCHPMAUATOMPOUQOPJJ4J2YIS

not attested not anchored not stored refs pending

6-arm blue grand design of NGC 309

A.D. Chernin (Sternberg Astronomical Institute, Moscow University)

arxiv:1503.03764 v2 · 2015-03-12 · astro-ph.GA

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{KPCHPMAUATOMPOUQOPJJ4J2YIS}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more · Embed verified badge

Record completeness

1 Bitcoin timestamp

2 Internet Archive

3 Author claim open · sign in to claim

4 Citations open

5 Replications open

✓ Portable graph bundle live · download bundle · merged state

The bundle contains the canonical record plus signed events. A mirror can host it anywhere and recompute the same current state with the deterministic merge algorithm.

Receipt and verification

First computed	2026-05-18T02:23:25.825599Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

53c477b01404dcc7ba9073d29e275844a608b144ee8c9c4588b434ef7684e93f

Aliases

arxiv: 1503.03764 · arxiv_version: 1503.03764v2 · doi: 10.48550/arxiv.1503.03764 · pith_short_12: KPCHPMAUATOM · pith_short_16: KPCHPMAUATOMPOUQ · pith_short_8: KPCHPMAU

Agent API

Resolver JSON Graph JSON Events JSON Schema Signing key

Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/KPCHPMAUATOMPOUQOPJJ4J2YIS \
  | jq -c '.canonical_record' \
  | python3 -c "import sys,json,hashlib; b=json.dumps(json.loads(sys.stdin.read()), sort_keys=True, separators=(',',':'), ensure_ascii=False).encode(); print(hashlib.sha256(b).hexdigest())"
# expect: 53c477b01404dcc7ba9073d29e275844a608b144ee8c9c4588b434ef7684e93f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "66305ae1221d14a6566616fd182db436dffd01d9e1c7bf6d1368fc20a8e21583",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2015-03-12T15:17:57Z",
    "title_canon_sha256": "bf96a7ce5d33939f80e93f01491d3c01780332f93070e248af1474ab941a9210"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1503.03764",
    "kind": "arxiv",
    "version": 2
  }
}